All categories

3 years ago

What is the symbol for decimeter

Chemistry

2 answers:

Marysya12 [62]3 years ago

5 0

Answer:

The symbol for decimeter is dm

Explanation:

No need for an explanation

alexgriva [62]3 years ago

3 0

Answer:

the symbol of decimeter is dm

Explanation:

hope this helped have a good day :)

You might be interested in

3. Human activity can cause changes in one of the Earth's systems that lead to subsequent alterations in a different system. For

crimeas [40]

answer: Surface water in nearby areas can become polluted.

Explanation:

8 0

3 years ago

If you have 600g of nitroglycerin, how many moles do you have? help please

aleksandr82 [10.1K]

Answer:

600

Explanation:

there's 1 mole in every nitroglycerin

I think

5 0

3 years ago

A sample of helium has a temperature of 450 K. The gas is cooled to 248.9 K at which time the gas occupies 103.4 L? Assume press

Umnica [9.8K]

Answer:

$\boxed{\text{163.3 L}}$

Explanation:

The pressure is constant, so, to calculate the volume, we can use Charles' Law:

\dfrac{V_{1}}{T_{1}} = \dfrac{V_{2}}{T_{2}}

Data:

V₁ = ?; T₁ = 450 K

V₂ = 103.4 L; T₂ = 284.9 K

Calculation:

$\dfrac{ V_{1}}{450} = \dfrac{ 103.4}{284.9}\\\\{ V_{1}} = 450 \times \dfrac{103.4}{284.9}\\\\ = \textbf{163.3 L}\\\text{The original volume of the helium was $\boxed{\textbf{163.3 L}}$}$

5 0

3 years ago

Read 2 more answers

Copper has two naturally occurring isotopes, 63Cu (isotopic mass 62.9296 amu) and 65Cu (isotopic mass 64.9278 amu). If copper ha

Semenov [28]

Answer:

Percentage of first isotope = 69.152 %

Percentage of second isotope = 30.848 %

Explanation:

The formula for the calculation of the average atomic mass is:

$Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})$

Given that:

For first isotope:

Let % = x %

Mass = 62.9296 amu

For second isotope:

% = 100 - x % (Since, there are only two isotopes)

Mass = 64.9278 amu

Average mass = 63.546 amu

Thus,

$63.546=\frac {x}{100}\times {62.9296}+\frac {(100-x)}{100}\times {64.9278}$

Solving,

1.9982 x = 138.18

Thus,

Percentage of first isotope = x = 69.152 %

Percentage of second isotope = 100 - x % = 30.848 %

5 0

4 years ago

Please help me with this answer

Dmitry [639]

Answer:

1) Hom DOMINANT

2) Hom recessive

3) Hetero DOMINANT

4) Hom DOMINANT

5) Hetero DOMINANT

6) Hom recessive

Explanation:

8 0

3 years ago